I use Intel Smart Response with a 60GB SSD to act as a cache for my 3TB platter drive. The platter drive has a 300GB partition for the OS and programs, and the other partition is just for storing data.
Generally I'm happy with caching, as Lightroom starts up quite fast as it's one of my most used programs and always on the cache. One thing that is still quasi slow, however, is loading the previews when switching from folder to folder. I have the preview deletes set for 30 days like the default I believe, so they do need to be generated if the folder is old.
I was wondering, if I bought another SSD just for the OS/Programs, then point Lightroom's temp folder to the SSD, would that make preview generation quicker?
Or am I just better off setting a longer period for keeping the preview files?